Back on the main coastal highway past the Wadi Darbat turning lie the absorbing remains of the old city of SUMHURAM, now protected as the Sumhuram Archeological Park. Along with the nearby city of Zafar, this was formerly one of the major ports of Southern Arabia and an important conduit for the international frankincense trade network. There are two wildly conflicting theories about the origins of the city based on the inscription found at the gateway.